Gladys T. Nisbet

Gladys Turner Nisbet (Grafton, Illinois, 11 September 1895 – Highlands Ranch, Colorado, 7 October 1994) was an American botanist known for researching the genus Penstemon, particularly in New Mexico. Nisbet earned a master's degree in Biology at the University of New Mexico expanding on work she had done as an undergraduate at New Mexico Normal University. A species of fossil coral which she discovered in Arizona, Iowaphyllum nisbeti, is named in her honor.